
In a mountainous region of China, workers are less than 3 months away from opening a stunning new bridge that will become the world’s tallest.
Spanning the Huajiang Grand Canyon, the bridge bearing the same name will tower 2,051 feet above the level of the river below, some 947 feet higher than the famous Milau Viaduct in France, the highest bridge in Europe.
But the Huajiang Canyon Bridge isn’t about breaking records. The southwestern Chinese province of Guizhou is riddled with karst rock mountains, and includes about half of the world’s 100 highest bridges. Here, these concrete and steel spans are a necessity of getting around rather than a demonstration of infrastructural excellence.
With a total length of 9,776 feet, (2,980 meters) and a main span of 4,658 feet (1,420) meters, it’s longer than the Golden Gate Bridge by both measurements, and has a similar towering nature as well.
As a key component of the Liuzhi-Anlong expressway, the bridge will cut travel time across the canyon from about 70 minutes to just 2. This improved connectivity is expected to boost local tourism by attracting more visitors to nearby sites such as the famous Huangguoshu Waterfall, said the local government website.
“Witnessing my work become something tangible—watching the bridge grow day by day and finally stand tall above the canyon—gives me a profound sense of achievement and pride,” said Li Zhao, chief engineer of the project.
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Made up of 93 individual steel trusses lowered into place by a giant, sophisticated, automated and GPS-guided cable car mounted above the span during construction, the whole structure weighs about 22,000 tons.
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One of the major challenges would be ensuring there was enough accuracy to lower the truss segments down into perfect alignment. Foreseeing this, the construction firm employed 3D scanning technology and ran virtual simulations in advance of truss placement to ensure they knew that what they were putting into place would fit.
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Sure enough, all of the placements were made without issue. Early renderings suggest that section of the bridge’s main span will host a 1,500-foot long enclosed pedestrian walkway complete with restaurant and bungee jump area, because why not?
Expected to open on June 30th, it will take the title of tallest bridge from, perhaps unsurprisingly, the Duge Bridge which crosses the same river just 120 miles from the Huajiang Canyon Bridge.
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